work-simple.c uses EXPORT_SYMBOL_GPL(), defined in <linux/export.h>.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable-rt@vger.kernel.org # 3.2
---
I'm not sure there's any need for these exports so the correct fix
might be to remove them.

Ben.

 kernel/work-simple.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/work-simple.c b/kernel/work-simple.c
index c996f755dba6..e57a0522573f 100644
--- a/kernel/work-simple.c
+++ b/kernel/work-simple.c
@@ -10,6 +10,7 @@
 #include <linux/kthread.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/export.h>
 
 #define SWORK_EVENT_PENDING     (1 << 0)